Toggle bolt



Dec. 11," 1928. I 1 94 494 C. C. TOMKINSON 1 TOGGLE BOLT Filed June 19, 1925 BY 64 J0 M ATTORN 5 mil Patented Dee. 11,

biiARLEs o. roIviKmsoi fot' i ner irintn, iinw'annsnY, 'Assie-NoR To aoin igniiwenn osnnmor MoUnTAIrivILLniv-nw YORK. 1 1

'roGGLE Born.

Application filed t re is, 1'925. s'iiain'o. sgii This invention relates to toggle bolts, such as are used for securing articles to walls or ceilings of brick, stone or ce'nientitious ina terial not adapted to directly receive a threaded meinber. I I

One of the objects 01 the invention is to provide a toggle bolt that is siinple and'pra'ctical in construction, comprises a minimum number of parts", can be economically naiiufactured and will be efiicient in operation.

I Another object of the invention is to pro.- vide a toggle bolt having a wing and nut so constructed and arranged as to toi'inla strong anchorage capable of sustaining re'lativ ely heavy loads.

Further objects of theinve'ntion will ap-' pear froin the following specification taken in connection with the drawings, which form a part of this application, and in which Fig. l is a sectional elevation showing a toggle bolt constructed in accordance with the invention, the bolt being illustrated as securing an article to a wall or ceiling; Fig. 2is a view similar to Fig. 1, but showing another operative position of the an chorage elernent;

Fig. 3 is a sectional elevation showing the bolt with the win bein inserted throiwh an I D b b opening; I I I Fig. 4: 18 a top plan view of the wing and nut, the bolt belng shown n section; I II Figs. 5, 6, 7 and 8 are sectional elevations taken substantially on lines 5-5, 66, 77,

and 8 -8 of Fig. l;

. Fig. 9 is an end elevation of the nut; and I Fig. 10 is an elevational'view of a nut taken atright angles to Fig. 9 looking toward the left. v

lhe invention briefly described consistsot a toggle bolt comprising a wing, a tubular nut rotatably mounted in the wing and a bolt threaded diametricallyv through. the tubular nut. A. spring engages the wing and nut for the purpose of rotating the wing with respect to the nut and the bolt after the wing has been inserted through the wall opening. C0 operating means are provided in the wing and nut forlimiting the relative rotation of these elements and these cooperating means are preferably somewhat yieldab1e. Further details of the invention will appear fronithe following description. I 1 I In the embodiment of the invention shown, the wing is formed with side walls 21 and 22 connected at one end by an outwardly curved portion "and itli'ej oppolsite end by afireversely ciuted;pprtion 24., Tlie central portion bf the wing in'terniediate the connected portions'is recessed or cutaway and provided with two pairs "oi upwardly ezgtendinglugsi25 and '26,;Th e lugs 25 as shown in t are substantially parallel to theside whlls'21and2f2 but the lugs 26 @0 1 verge inwardly ii 'ith reier'eiice to the side I walls.

The lnu't so as shown in Figs-.9 and 10 is formed of a flat .sheet ii eta-l blank insti l is rolled into substantially cylindrical shape,

the nieetin edges being recessed as shown at The recesses 82 form lugs 33' which taper outwardly with respect tothe longitudinal center of the nut and also ex tend slightly away from the cylindrical outer surfaceof the. remaining portion of the nut (s'e'eFigQ). I I

As Sho n particulai-lyjiiiFig 4, e iii-gs 33 (see Fig. 9) of. the nut, coiitactoii'their tapered edges with the tapered suria ccs thelugs 26031 the winggtlius forniingla yi elil J I ain stop mutin limiting ,the l'OtitilOIL oi the wing with reference the nut} and bolt,

by a spring in a manner hereafter setlfoith. The" relative angularity 0t thaws sets of lugs is such as to stop the head in a position, substantially at right angles to the boltigthe headbeing noi'iiially retained in that iposition by the spr ng tension. :[The lugs ire sprin tension bu 1 1 nead can be rota. any lrr'egulaisu seated. The wt enough to 'resistthe d II 'i rther to adapt itself to es upon, which. it niaybe ng. contact between L legs 33 and 2 31 ides a powerful means (if bending the and permits considerable angular movement of the head with slight distortion of thelugs. i I

The coacting l ugs 33 and, a'l soifunction e yieldable so that the,

lo laterally tlienut 30in the wingQQ when heldgifijcfteeict b the spring 4.2 so that the bolt ten-be withdrawiiand replaced without we ght-suing out at its be rings. When itfend the are bt ein ga;s ambled, deiugs 33' pass freelythrough the openings the top of thewin providing a simple in'e ii's of assembling,

I The, nu, I shown ,;sf5 t recei ea bolt e I A p tol e 0. e d eem d. th M1 21, oftl ie iying and. extending through -an opening 41 therein. 1 The coiled portion 42 of nib jiiifi ZQY is diametric lly threaded as nut and the opposite end of the spring extends through one of theopenings 31 and is f bent around as shown at 43. From the showthe tension of the spring to ing in Figs. 1 and 4 "it will be seenthat the spring 42 engages or contacts with thenut 30 at the end 43 on the outside of the nut, at the end 43 where the spring engages the inner surface of the split portion in recess 32,

- by contact of the coil 42 with the inner surthrough the-opening, the spring will cause the wing to swing with respect to the bolt and nut until the stop'lugs 26 and 33 coact to limit the swinging movement. These lugs normally stop the swinging of the wingwhen the wing reaches the position substantially at right angles to the bolt.

In Fig. 2a projection or abutment is shown at the inner end of the hole and the wing has been forced beyond the right angle position shown in Fig. 1, this being permitted by the yielding of the lugs 26 and the coacting parts 33 of the tubular nut, either or both. It will be noted that the portions of the walls 21 and 22 of the wing are in tension when a load is placed'on the bolt or when the bolt is supporting some article 51 and the tubular nut forms a truss member for sustaining the load, thenut being placed under compression. V

Although one specific embodiment oflthe invention has been particularly shown and described, it will be understood that the invention is capable ofmodification and that changes in the construction and in the arrangement of the various cooperating parts may be made without departing from the spirit or scope of the invention, as expressed in the following claims.

What I claim is:

1. A toggle bolt comprising a wing having a bearing portion, a nut rotatably mounted in said bearing portion, a bolt threaded into said nut, said nut and wing having stop means for limiting the rotatable movement of the nut relative to the wing, and a spring acting on the nut and wing to effect relative rotation of these elements, said stop means and spring being constructed and arranged V to retain the nut in the wing bearing portion.

, 2. A toggle bolt comprising a wing, a nut rotatably mounted therein'intermediate the ends of the wing and having stop lugs ensaid nut, and a spring acting between the nut and wing and adapted to resiliently retain the stop lugs in engagement w th the wing. 3. A toggle bolt comprising a wing, a nut rotatably -m0unted therein and havingspaced stop lugsadapted to receive between. them a portion of the wi.ng,'a boltthreaded into said nut, and a spring acting between the nut and Wing and adapted to resiliently retain the stop'lugs in engagement with the wing V p p i 4. In a toggle bolt, a single wing, a tubular nut adapted to receive a bolt andfrotatably mounted in the wing and a. spring acting on the nut and wing, said spring being secured at one end to the wing and extending intothe tubular nut. V 5. In a toggle bolt, a single wing, a tubular nut adapted to receive a bolt and rotatably mounted in thewing and a sprin acting on the nut and wing, said springbeing secured at one end to the wing and extending into and being secured to the interior of the tabu} lar nut'.

6. In a toggle bolt, a wing, a nut adapted to receive abolt and pivoted, in thewing and having a cavity therein and a spring partially located inthe nut cavity and adapted to rotate the wing relative to the nut.

7. A toggle bolt comprising a single wing I and a nut pivoted therein, ab olt threaded into said nut, said nut having lugs adapted to engage a portion of the wing and yieldable under stress to permit the wing to conform to irregularities of thesurfa'ce on which it bears.

8. In a toggle belt, a wing, a nutrrotat-ably mounted therein and adapted to receive a bolt and yieldable stop means on the nut engageable with the wing for limiting the normal movement of the wing in one direction to receive a bolt andhaving circumferentially 'disposed lugs, said nut being insert-ible in the bearings when the lugs are-disposed in alinement with the openings in the bearings.

11. In a toggle bolt, a wing having a bearing open at the top and a nut insertible laterally into the bearing in a direction'paraliel to y the axis of the bearing and having an offset portionadapted to pass through the open top thereof, saidn'ut being adapted to receive a bolt.

12. In a toggle bolt, a'wing having a bear-,

ing open at the top and a cylindrical nut insertible laterally into the bearing in adirection parallel to the axis of the bearing and having an ofiset portion aoapted to pass through the open top thereof, said nut being adapted to receive a bolt.

*3. In a toggle belt, a wing, a tubular nut adapted to receive a bolt and rotatably mounted in said wing, means on said nut and wing adapted to coact in retaining the nut in the wing and a spring acting on said nut and wing.

14. in a toggle bolt, a wing, a cylindrical nut adapted to receive a bolt and rotatably mounted in said Wing, oiiset means on said nut and wing adapted tocoact in retaining the nut in the wing and a spring acting on said nut and wing.

15. In a toggle bolt,'a wing, a tubular nut adapted to receive Jolt and rotatably mounted in said wing and having a slit extending lengthwise thereof, and yieldable means on the nut adjacent the slit adapted to eoact with a portion of the wing to i l inn a yieldable stop for limiting the rotation of the wing on the nut. 1

16. In a toggle bolt, a wing, a tubular nut adapted to receive a bolt and rotatably' members being disposed outside of the lugs on the other member.

17. In a toggle bolt, a wing, a tubular nut adapted to receive aboltandrotatably mounted in said wing and having a slit extending lengthwise of the nut, a pair of lugs on the nut adjacent said slit and lugs on the wing adapted to coact with the lugs on the nut to lengthwise thereof, and yieldable lugs on,

the nut adj acentthe slit adapted to coact with lugs of the wing to form a yieldable stopfor limiting the rotation of the wing on the nut.

19. In a toggle bolt, a wing, a nut adapted to receive a bolt and rotatably mounted in said wing, a pair of lugs on said nut, a pair of lugs on the wing disposed in wedging relation with respect to the lugs on said nut and adapted to coaet therewith to form a stop for limiting relative rotation between the nut and wing.

20. In a toggle bolt, a wing, a tubularnut adapted to receive a bolt and rotatably mounted in said wing and having a slit extending lengthwise of the nut, a pair of lugs on the nut adjacent said slit and lugs on the Wing adapted to coact with the lugs on the nut to form a stop for limiting the rotation of the CHARLES C. TOMKINSON. 

